Improvement in sash-fasteners



11. Hf KBRVIN. Sash-Fastener.

N QEPN.

' Inventor.

. the middle thereof. oted to a slide, G, arranged in the case and UNITED STATES PATENT OEEIoE,

GEORGE E. KERvIN, 'OE BOSTON, MAssAoHUsETTs.

IMPROVEMENT IN SASH-FASTENERS.

Specication forming part of Letters Patent N0.m 211,334, dated January 14, 1879; application led September 4, 1878.

To all whom# may concern:

Be it known that I, GEORGE H. KERVIN, of Boston, of the county of Suffolk and State of Massachusetts, have Ainvented a new and useful Improvement in Sash Supporters and Fasteners; and do hereby declare the same to be described in the following` specification, .and represented in the accompanying drawings, of which- Figure lis a front elevation, and Fi gs. 2 and 3 are vertical. sections7 of a window sash and frame provided with my invention, which not only serves to support the sash at any altitude within the limits of itsmotion in the windowframe, but to lock it when it is at its lowest position.

The sash supporter and fastener hereinafter described is composed of a slide, spring, toggles, rods, notched friction-bearers, andtwo locking-studs, all being arranged and com bined in manner land applied to a case and the sash and windoLw-frame as set forth, the invention being dened in the claim hereinafter made.

In the drawings, A denotes the windowframe, and B the sash, all of which may be supposed to be such as are common to railway passenger-cars.

Fixed or pivoted to the opposite edges of the sash are two friction-bearers, C C, from whose lower parts rods D D extend to and4 are jointed to two toggles, E E, arranged in a case, F, iXed to the lower bar of the sash at The said toggles are pivapplied thereto so as to be capable of being moved vertically therein, there being over the slide and within the case a spring, H, to press the slide downward.

A flat knob or projection, I, extends Vfrom the slide through a slot, a, in the case, and over this projection there is another one, K,

that extends from the sash or from the case. By applying the index-finger of one hand to the upper knob, K, and the thumb of such hand to the lower knob, so as to pinch them, or force the lower toward the upper, the for- `mer may be raised, in which case the frictionbearers will be drawn away from the surfaces against which they may be forced hy the power of the spring acting through the slide, the toggles, and the rod.

In each bearer C there is a notch, b, to receive one of two looking-studs, c c, projecting' from the vertical walls d d of the grooves in which the sash is placed. `When the sash is in its lowest position the studs c o are in the notches b b, and with them lock the sash or prevent it from being raised by a person outside of the window.

On raising the sash within the windowframe to any height above the sill thereof, which can be done by pressing the knob Iupward, such sash will be supported or retained in position by the friction-bearers, especially after the hand may be withdrawn from the knob.

The outer surfaces of the bearers I usually re-enforce with cnshionsf of india-rubber, in order that such bearers may p'rate with a sufficient amount of friction.

I claim as my invention, as follows:

The sash supporter and fastener, substantially as described, composed of the slide G, spring H, toggles E E, rods D D, notched friction-bearers C C, and the locking-studs cc, arranged and applied to each other and to a sash and window-frame, essentially as set forth.

Witnesses:

y R. H. EDDY, S. N. PIPER. 

